“It will be Occupy Wall Street’s grandchildren. The community board will have to fight to build a school over there.

“It would be bad enough if it’s 2015. But if they keep getting donations like they are, who knows?”

The leaderless anti-greed movement has racked up $750,000 in donations from supporters and unions and gotten space for storage and portable toilets from the United Federation of Teachers.

“Noooo! Not 2025,” groaned Mohammed, 38, a food-cart operator at Cedar Street and Broadway. “It was good business [before the protest], and now it’s so slow. 2025, I don’t think so. Never! I hope next month they’ll be gone.”

Their Web site suggests the radicals won’t be learning much over the next 14 years, as “Radical Economics 101” appears on the agenda every Sunday between now and then — with no sign that “Radical Economics 202” or “303” is in the offing.

Neighbors already have been forced to endure weeks of constant noise from megaphones and drumming, as well as brawls, graffiti, public urination and defecation, as the number of vagrants, criminals and wackos squatting in the privately owned park has soared since the protest started Sept. 17.

But not everyone was ready to yank in the welcome mat.

“We passed a resolution saying they have the right to protest. If it takes 14 years, that’s their right,” said Julie Menin, chair of CB1, adding that quality-of-life issues could still be addressed without forcing OWS out.

City Hall, the NYPD and Brookfield Properties declined comment.

In other Occupy Wall Street developments:

* Only 10 protesters showed up for an “Occupy the MTA” protest at Union Square yesterday to demand that the jobless be allowed to ride for free.

* A Brooklyn public-school teacher was among the latest batch of demonstrators busted for clashing with NYPD — becoming the second city educator arrested in a week.

Joshua Wiles, 27, of Bedford-Stuyvesant, was cuffed at 3:30 p.m. Saturday with 19 others at Centre and Pearl streets and charged with disorderly conduct after allegedly defying police orders to stop blocking traffic.

Bronx teacher David Suker already has been busted twice

* The mayor of Vancouver ordered the Canadian city’s protest shut down after two drug overdoses — including one that killed a 20-year-old woman.